In a large bowl, whisk together the flour, baking powder, and salt.
In a separate medium bowl, whisk together the egg, sugar, oil, buttermilk, and vanilla.
Pour the wet ingredients into the dry ingredients and stir until just combined and moistened. Be careful not to overmix.
Carefully fold in the chopped strawberries and stir just until combined and strawberries are evenly distributed.
Pour the Strawberry Bread batter into the prepared 9x5 loaf pan and bake for 50 minutes to an hour. Check it at 50 minutes and if it needs more time, check it in 5 minutes. (It is done when a toothpick inserted in the center of the loaf comes out clean.)
Remove the Strawberry Bread from the oven when done and cool on a wire rack.